A-96710-79 Lap head, transmission lapping tool

When you're rebuilding a classic 4-speed or early 5-speed transmission, getting the bushings exactly right is non-negotiable. This 1.870-inch cast iron lap head is a specialized tool designed for use with transmission lapping kits. It is specifically sized for 1936 to 1977 Big Twin models. The cast iron construction allows the lapping compound to "charge" the surface effectively, providing a precise, smooth finish on the bushings. Using a tool like this ensures that your shafts have the correct oil clearance and alignment, preventing premature wear and ensuring smooth shifting. It’s a professional-grade component for the mechanic who takes their transmission work seriously.